// -----------------------------------------------------------------------
//  <copyright file="Filters.cs" company="G-Research Limited">
//    Copyright 2020 G-Research Limited
//
//    Licensed under the Apache License, Version 2.0 (the "License");
//    you may not use this file except in compliance with the License.
//    You may obtain a copy of the License at
//
//        http://www.apache.org/licenses/LICENSE-2.0
//
//    Unless required by applicable law or agreed to in writing, software
//    distributed under the License is distributed on an "AS IS" BASIS,
//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//    See the License for the specific language governing permissions and
//    limitations under the License.
//  </copyright>
// -----------------------------------------------------------------------

namespace Consul.Filtering
{
    public static class Filters
    {
        internal static Filter And(Filter left, Filter right) => new AndFilter
        {
            LeftFilter = left,
            RightFilter = right,
        };

        internal static Filter Or(Filter left, Filter right) => new OrFilter
        {
            LeftFilter = left,
            RightFilter = right,
        };

        internal static Filter Not(Filter filter) => new NotFilter
        {
            Filter = filter,
        };

        internal static Filter Empty<TSelector>(TSelector selector)
            where TSelector : Selector, IEmptyApplicableConstraint => new EmptyFilter<TSelector>
            {
                Selector = selector,
            };

        internal static Filter Contains<TSelector>(TSelector selector, string value)
            where TSelector : Selector, IContainsApplicableConstraint => new ContainsFilter<TSelector>
            {
                Selector = selector,
                Value = value,
            };

        internal static Filter Eq<TSelector>(TSelector selector, string value)
            where TSelector : Selector, IEqualsApplicableConstraint => new EqualsFilter<TSelector>
            {
                Selector = selector,
                Value = value,
            };

        internal static Filter NotEq<TSelector>(TSelector selector, string value)
            where TSelector : Selector, IEqualsApplicableConstraint => new NotEqualsFilter<TSelector>
            {
                Selector = selector,
                Value = value,
            };
    }
}
